dorsal/arxiv
View SchemaDetermination of the s-wave Scattering Length of Chromium
| Authors | P. O. Schmidt, S. Hensler, J. Werner, A. Griesmaier, A. Goerlitz, T. Pfau, A. Simoni |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0303069 |
| URL | https://arxiv.org/abs/quant-ph/0303069 |
| DOI | 10.1103/PhysRevLett.91.193201 |
Abstract
We have measured the deca-triplet s-wave scattering length of the bosonic chromium isotopes $^{52}$Cr and $^{50}$Cr. From the time constants for cross-dimensional thermalization in atomic samples we have determined the magnitudes $|a(^{52}Cr)|=(170 \pm 39)a_0$ and $|a(^{50}Cr)|=(40 \pm 15)a_0$, where $a_0=0.053nm$. By measuring the rethermalization rate of $^{52}$Cr over a wide temperature range and comparing the temperature dependence with the effective-range theory and single-channel calculations, we have obtained strong evidence that the sign of $a(^{52}Cr)$ is positive. Rescaling our $^{52}$Cr model potential to $^{50}$Cr strongly suggests that $a(^{50}Cr)$ is positive, too.
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"abstract": "We have measured the deca-triplet s-wave scattering length of the bosonic\nchromium isotopes $^{52}$Cr and $^{50}$Cr. From the time constants for\ncross-dimensional thermalization in atomic samples we have determined the\nmagnitudes $|a(^{52}Cr)|=(170 \\pm 39)a_0$ and $|a(^{50}Cr)|=(40 \\pm 15)a_0$,\nwhere $a_0=0.053nm$. By measuring the rethermalization rate of $^{52}$Cr over a\nwide temperature range and comparing the temperature dependence with the\neffective-range theory and single-channel calculations, we have obtained strong\nevidence that the sign of $a(^{52}Cr)$ is positive. Rescaling our $^{52}$Cr\nmodel potential to $^{50}$Cr strongly suggests that $a(^{50}Cr)$ is positive,\ntoo.",
"arxiv_id": "quant-ph/0303069",
"authors": [
"P. O. Schmidt",
"S. Hensler",
"J. Werner",
"A. Griesmaier",
"A. Goerlitz",
"T. Pfau",
"A. Simoni"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.91.193201",
"title": "Determination of the s-wave Scattering Length of Chromium",
"url": "https://arxiv.org/abs/quant-ph/0303069"
},
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